Ethyl 6-fluoro-4-methoxy-3-(trifluoromethoxy)pyridine-2-acetate
Ethyl 2-fluoro-4-methoxy-3-(trifluoromethoxy)pyridine-5-acetate
Methyl 3-cyano-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-6-acetate
5-Chloro-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid